*{
	margin: 0;
	padding: 0;
}
nav{
	display: flex;
	justify-content: space-around;
	align-items: center;
	border-bottom: 0.1px solid #C7C7CC;
}
nav >span{
	padding-bottom: 10px;
	font-size: 15px;
}
nav >span:hover{
	border-bottom: 1px solid #54B3F7;
	padding-bottom: 10px;
}

.dang{
	width:95%;
	margin-left:2.5%;
	margin-top:20px;
}
.dang span{
	color:#ACACB4;
}
.qian{
	display: flex;
	flex-wrap: wrap;
}
.qian button{
	background: #ACACB4;
	width:25%;
	margin-right:10px;
	text-align: center;
	color:#fff;
	margin-top:10px;
}
.history{
	width:95%;
	margin-left:2.5%;
	margin-top:20px;
}
.history span{
	color:#ACACB4;
}
.wang{
	display: flex;
	flex-wrap: wrap;
}
.wang button{
	background: #ACACB4;
	width:25%;
	margin-right:10px;
	text-align: center;
	color:#fff;
}
.wan{
	width: 100%;
	display: flex;
	flex-wrap: wrap;
}
.wan button{
	width:10%;
	background: #C0C0C0;
	margin-right:5px;
	color:#fff;
	margin-top:5px;
}
